Heating-stove



No. 609,662. Patented Aug. 23, I898.

.P. J. CDPPENS.

HEATING STOVE.

(Application filed Feb. 10, 1898,)

(No Mndej.)

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NITED STATES PATENT OFFICE.

PETER J. COPPENS, OF GRAND RAPIDS, MICHIGAN.

H EATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 609,662, dated August 23, 1898. Appli ation filed FebruaryIO, 1898. serial No. 669,777. (No inodel.)

such as will enable others skilled in the art to which it appertains to make and use the same. My invention relates to improvements in heating-stoves, and more especially to such stoves adapted to burn soft or bituminous coal; and its object is to provide the same with certain new and useful features hereinafter more fully described, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which Figure l is a front elevation of a stove embodying my invention Fig. 2, a central vertical section of the same from front to rear; Fig. 3, a horizontal section of the same on the line 3 3 of Fig. 2; Fig. 4, the same on the line 4. 4 of Fig. 2, and Fig. 5 an enlarged detail of thedampers and adjacent parts.

Like letters refer to like parts in all of the figures.

A represents a cylindrical sheet-metal body having an inwardly-pressed bead A, suitably.

located to engage the outwardly and up wardly inclined'fiange G, surrounding the top of the fire pot O and resting upon a suitable base B, forming the ash-pit. Said base has an inwardly-projecting flange B engaging the side of the fire-pot near the bottom thereof, thus forming an annular flue or chamber around the fire-pot. Openings G are provided at the front thereof for inlet of air to be heated and an opening Hat the rear for exit of the air into a vertical flue I at the back of the stove and having an'opening I at the top for the escape of the heated air. The fire-pot C is also provided with a forwardly and upwardlyinclined portion D, extending through the body A and closed by a suitable door and register. Upon the rim of the fire-pot is an air-chamber E, consisting of an annular casting segmental in cross-section, with its inner edge resting on the edge of the fire-pot and provided with a series of nicks or openings E for the escape of the hotair blast and with its outer edge resting against the body A. Bolts F pass through this'casting and down through the flange 0 and thence through the flange B and serve to secure the various parts in place. An airduct J extends vertically up through the flue I and thence in a curve J into the collar of the chimney-pipe L. The upper part of this duct is provided with an inwardly-projecting branch or T J and a damper M, adapted to close the T J when in vertical position and to open the same and close the passage J when turned horizontal, and a damper M is provided to close the passage J when it is desired to force the entire draft up through the fire-pot, as in starting a fire. Extending laterally and horizontally fromthe J" are the air-ducts K, which extend in opposite curves within the upper part of the stove to near the front thereof and thence down into the airchamber E. I

The operation of my device is as follows: A current of air is drawn into the openings G and, passing around the fire-pot, tends to cool the same and is heatedthereby. Escaping into the flue I, the air is still further heated therein and thence escapes through the opening I, whence it may be conveyed to an upper room by a pipe, if desired. This flue I acts as a chimney to cause circulation of air around the fire-pot. The extension D on the fire-pot serves to admit air to the fire and also as a convenience in stirring the fuel and also for inserting kindling in starting a fire. The current of air toward the same'aids the currententering the openings G, andvice versa. When fresh coal is supplied either through a door in the body A (not shown) orthrough the opening in the top, the fire is'likely to smoke; The hot-air blast is then very useful for burning the smoke and increasing the fire.

. This is turned on by turning the damper M to a horizontal position. The warm air rising in the duct J will be turned into the ducts K, in which it becomes further heated in its passage to the chamber E, in which chamber it becomes still further heated, finally escaping through the openings E at a high temperature and in finelydivided streams. When the fire is burning clear and the coal has become coked, the draft may be checked and the hotair blast shut oh? by turning the damper down to the vertical position again. The inclina tion of the flange O discharges any ashes or coal that may enter the openings E, and the novel construction of bead A, flange 0, airchamber E, base-flange B, and bolts F for securing the same forms a very cheap and durable structure.

It will be observed that the fire-pot is not only supported by the bead A, but that the flange 0 serves to hold the body A down upon the base, and at the same time the flange on the base forms the bottom of an air-passage, holds the bottom of the fire-pot in place should it crack off from the upper part, and also serves as an element in attaching the body and base to each other; also, that the body A is of a single continuous sheet from the base upward, serving to form the outer wall of the air-chamber and also of the chamber around the fire-pot; also, that the airchamber is formed of a single piece E, segmental in cross-section and cast without necessity of coring out, thus saving expense and material, which piece, together with the body and fire-pot flange, forms the air-chamber proper.

Having thus fully described my invention, what I claim, and wish to secure by Letters Patent, is

1. In a stove, a sheet-metal body having an inwardly-pressed bead, a fire-pot having an outwardly and upwardly inclined flange engaging said bead, a base supporting said body and having an inwardly-extended flange engaging the firepot near the bottom, and bolts extending through the flanges of the fire-pot and base, substantially as described.

2. In a stove, a sheet-metal body having an inwardly-pressed bead, a fire-pot having an outwardly and upwardly inclined flange e11- gaging said head, a base supporting said body and having an inwardly-proj ectin g flange engaging the fire-pot near the bottom,bolts passing through said flanges, and an inclined extension on said fire-pot extending through the said body, and closed by a door and register, substantially as described. 3. In a stove, the combination of a sheetmet-al body having an inwardly-pressed bead, a fire-pot having an outwardly and upwardly extended flange, a base supporting said body and having a flange engaging the side of the pot near the bottom, an annular air-chamber at the top of said fire-pot having a series of openings, and bolts extending throughthe air-chamber and the flanges, substantially as I 'described.

4. In a stove the combination of a sheetmetal body having an inwardly-pressed bead, a fire-pot having an upwardly and outwardly extended flange engaging said bead, a base supporting said body and having an inwardlyprojecting flange engaging the lower part of the fire-pot, and an air-chamber segmental in cross-section, having openings in its lower edge and resting against the body at its upper edge, and means for admitting air to said chamber substantially as described.

5. In a stove, in combination with a body and a fire-pot having a flange engaging the body at its outer edge; a casting engaging the flange at one side and engaging the body at the other side, and provided with openings for escape of air, said body, flange and casting thus forming an air-chamber and means for supplying air to the said chamber substantially as described. v

6. In a stove, the combination of a fire-pot, an annular air-chamber at the top of the same having openings,avertical flue,a vertical duct in said flue opening at its upper end into the chimney-pipe, air-ducts extending from the said vertical duct to the air-chamber and a damper to shift the air-currents, substan' tially as described.

7. In a stove, the combination of a body, base, and fire-pot forming a heating-chamber around the fire-pot, and having inlet and exit openings,a vertical flue connected to the exitopening and open at the top, an air-chamber surrounding the top of the fire-pot and having a series of openings, an air-duct in said flue opening into the chimney-pipe, air-ducts extending from said duct to the air-chamber, and a damper to change the current of air, substantially as described.

8. In a stove, the combination of a fire-pot, an annular air-chamber having openings, a vertical air-duct opening into the chimneypipe, a T opening into said vertical air-duct, branch ducts extending oppositely from said T and Within the upper part of the stove and thence downward to the air-chamber, and a damper alternately closing and opening the vertical pipe, and a second "damper to close and open the passage to the chimney-pipe, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

PETER l. OOPPENS.

Witnesses:

LUTHER V. MoULToN, LEWIS E. FLANDERS. 

